Clutch operating mechanism



July 5, 1932- A. EILERSGAARD CLUTCH OPERATING MECHANISM Filed Jan. l1, 1929 Patented July 5,1932

AsGER EILERSGAARD, orfcirIcAGo,frrnrivorsgnsselvort 'ro :tink-*BELT COMRVANVY, VA

- f CORPORATIQNOFILLrNoIs f c. v f

p5; drawing, wherein-- l CLUTCH orErtirrrivc, -ivrncruiivrsMl` applicati@ inea January 11, 19279.y seriai No; 331,891. Y y

This application relates to "a clutch-"and particularly toga clutch4 operating mechanism. Y

1t is adaptedparticularly forY use in connec.-` tion with a "booster clutch.P In' one ferml this l clutch lmay hev used with self-'louclringtoggle clutches. It has forone object to :provide fa mechanism which will minimize the physical labor required to setl lthe clutch. Another object is to provide such a mechanism which will in `addition give the same feel vandvcon'# trol of theclutch typical of the ordinary direct connected handzlever." Another objectV is toprovidesuch a mechanismy inwhich a minimum ofworking parts is used whereby wear. and'repair are reduced to a minimum. Other objectswill appear from time to time throughout the specification and claims? The invention isillustrated more orless diagrammatically A in the'L accompanying Figure .1 is a plan view; l y l' i f Figure 2 is. a vertical cross section show'nfon Y the line 2-20f Figure 1;. I i

Figure '3 is an end elevation witlrparts broken away and parts in section.

Like parts are indicated by'like characters throughout. v Y

TheIclutch and clutch operating mechanism 4are-illustrated asV vmounted generally A onthe basel A. A1- is a supporting member eX- tending upwardly from the baseA carrying at its top a bearing housing A2wi'thin which is; positioned a bearing A3 which carriesva shaft A?. lKeyed adjacent oneend of the 1;; shaft A4 is a friction wheel B. VIt isprovided ries an arm C2 which is provided with a-latin its periphery witha groove B1. Theshaft A4 may be provided at its outer end with are' duced end portion C uponr .whichn is movably mounted'a-hub C1. 'l 1 V.This-hub "forms'part of a pivot arm assembly. Preferably on its upper side it car`y erally bent portion C3v whichfoverlies lthe grooved wheel B. On ,its "lower side the hub C1 carries Aa. ypivot .arrngl C? which isperforated .at jits lower" end asat C5 and carries -a laterally-extending flange C6. f C7 is a stop'or limit'screwthreaded in the flange C. 2- Adja`cent:its` outer end the i '50 flange is perforated at C8 andwithinthisper-pv the wedge lever :D. It carries afwedge D7.

BL of the friction wheel and corresponds` 'there is loosely positioned a-bolt C".

About kthe bolt-lis a compression spring C1.

bearingat' y'one endiupon the flange Cy and c atgits other Aupon the head of the bolt; C

'is a'holding plate removably held .in y position on theshaft endportion Gby means of'lscrews lDisa wedge orclutch blockVV carryinglever i Adjacent its upper .end itfisprovided with .n 60

end of thelever Ct'rand thus the lev'erfG4L and the wedge lever D are pivotally'joined to; f

65 from theinernberD andfbeing'in .position in opposition to the flangeC.H A'capscrewy D4 threaded in the'flange C extends-through gether. UYD3 isa -flange -extendinglaterally ak perforation vin ptheiiange D3' andllimits relative movementiof theiia'nges C6 and D3. The bolt G9 extends .through aperforation D5 adjacent" the outer endfof theiange D3. Ds is an additional lateralextension 'from This wedge is positioned withinthe groove in shape t it.v j

. E isa supported lmemberkfastenedonthe base A and pivotallysupporting a handlever El. `AA` reach: rodE2 is pivotally fastenedto' the hand leverEl. atjone end-and similarly" Y fastened to the lower endr ofthe wedge' lever D at its-other end.

F Vis a reach rod pivotallyfastened .ati one 1 end tothe upper-end 0?- oftheleverC,2 and at- 85 its other `end fastened to onefarm offa bell v cranlrFv 1. 1 This bell:l cranlr'fisrjoined `to la cylindrical portion'FZzwhich is. supported for movement on a shaft Ft' This shaft is car.

ried inja ybearing supportingmember'Ft, 90 .la

which isr supported `from any. suitable base." The support is not yshown asitiforms no principal'part of the invention." For the purpose of the invention it is suliicient ,that the bell crankhave "a support'uponv which itis 951':

pivotallymounted. i Bartending Afrom the 1 cyiindrical portion vF2 is .a clutch yoke F5. This `yoke comprises the, two lusual yoke arms -as^shown. Each carriesan engaging pin F6 v which `normally' engage a shift' collar Ffby? 10()k PATNTiorh-crif f 9.3 ,blockY Wheel which now for the. moment ent means of which the main clutch is operated.

It will be evident that while I have shown in my drawing an operative device vstill many Ich'angesinight be made in size, shape, jarrangement and disposition of parts without departing materially from the spirit of my invention and I wish, therefore, that my showing be taken as in a sense diagrammatic.` The use and operatlo'nof the invention are Y as follows i For the purposes of illustration Iv have shown the groovedffriction wheel vas being mounted upon the same shaft whichy carriesVY the main clutch, The inyentionfis not lim-k ited to this arrangement. It is sufficient 1f Y the friction wlie-elbe mounted upon' a shaft of the generali mechanism which revolves at Y .the Sametime as lthe clutch shaft.AA

" When the machine isin'operation the main shaft and the booster clutchfriction wheel reI-l volve clockwise as shown by thearrow' in the Y f drawing lin Figure 3. In operating'the device the operator pullsthe hand lever to the,

left and the'motion of thislever throughfthe reach rod E2 .actuates thelever DV and brings the wedge or clutch block D7 Vin'con'tact with the friction wheel.

This motion then acting through the' lever C4 and the lever C2 C3 pulls the yreach rod F tothe right underrthe influence of themotion' of the wedge or clutch gages the wedgeD?. This movement ofthe reach rod F moves the bellcranlr-F1 in the Y clutch.

same direction and correspondingly shiftsY the. clutch yoke F5 which by reason of its engagement with the shift collar F7 operatesthe 'Ihe flange elements Cer-andfD`3 cooperate toA limit the engagement of the kwedge or clutch block because whenthe voperator rov tates the lever 'E1 in a countercloclrwise di-v recti'on with the lever G2 at rest, th-isl rotates the clutch block lever thereon. tocause engagement of the clutch butthis. rotation is limitedV by the cooperation ofthe screw D4' wthits associated screw and in itsrelation to the twoflangestends to-hold them together and normally keep the clutch block outof `en-V gagement with the wheel.V AWhen the operator wishes to release the main clutch, hemoves-the handlever in the opposite direction.f-This,.of course,imoves the reach rod E2fand the wedge leverDin the reverseidirection'. VDuring thisoperation the springv C179 tends to: hold the flange, of the wedge 4lever D` solidly against the cap screw C7 andthe flange G6 of the lever C4. Thus `the-'redect of moving Vthe hand lever El isV transmitted through thelever Dand. the lever C4 and 'correspondingly throughthe lever C? C3, the reach rod F, the bell crank F1 and the clutch yokeis operated thereby to release the main clutch positively. By means of the mechanism provided herewith the operator through the booster clutch can either engage or releasethe main clutch to any degree which he wishes and he can keep the main clutch engaged by merely holding the hand lever E1 stationary. This booster clutch arrangement therefore gives the same feel and control ofthe main clutch which is possible with a direct connected hand lever but at the same time it reduces the labor of the main vclutch and providesan-arrangement less subject'to' wear. I Vvclaim: ll vIn'combination, a rotating therewith, a driving connection extending from-the power lever, a clutch block car` ried by the/power lever, a clutch lever pivoted on the power leveradapted to move the clutch block into and out of contact with the wheel, means interposed betweenthe clutch lever 'and the power lever to limit'their angular movement. l f v 2. In combination, airotating drive Wheel, a power lever mounted for rotation concentric therewith, ,a driving connection extending from the power lever, a clutchy block carried by the power lever, a clutch lever pivoted onithe power lever adapted to move the clutch block vinto and out of vcontact with thewheel, means interposedV betweenV the clutch lever vand. thel power lever to-'limit their angular movement, a hand leverpivoted at a point removed vfrom the axis ofrotation of the wheel and a driving connection between it and the clutchlever. f

3. In'combination, a rotating drive wheel, ak powerlevermounted for rotation in a plane perpendicular to the Vaxis of rotationl of the wheel,a driving connection, leading fromthe power lever, a clutch block carried? byy the power lever, ,a'clutch'Y levenpivoted. on, the power lever and adapted" to move the' Vclutch block into and outf of contact with the' wheel,means interposed between the clutch `lever andthe power lever tolimit their VVangular movement. y v- 4;. In combination a rotating drivek wheel, a power lever mounted for rota-tion concentric therewith, ya driving, connection extending from the power levera"clutch block carried by the-power lever,p a clutch lever pivoted onthe'power leveradaptedto move the. clutch block4 radially into; and outV ofcontact with. the wheel, means interposed between the clutch lever andthe power lever to limit; their angular'movernen Y 5. In combination a rotatingV driving." clutch member, a powerflever mounted fori rotation concentric therewith,;a driving oona` nerction extending from the powerA lever, af driven* clutch `.member asso'ciated` withl the;

a drive wheel, i apowe-r lever mountedforrotation"concentric rio 6. In combination a rotating driving `clutch member, a power lever mounted for rotation ina plane perpendicular to the axis ofv rotation thereof, a driving connection leading from the power lever,` a control lever pivoted on and extending generally in line with the power lever, a clutch member v of position of the power lever'.

adapted to be moved into and out of engagement with the driving member, means for limiting the angular movement of the two levers aboutr an aXis parallel with the axis of rotation of the drive member. 4f

7. In combination a rotating driving clutch member, a power lever. mounted yfor rotation in a plane perpendicular to the-axis of rotation thereof,A a driving connection leading from the powerlever, a control lever pivoted' on and extending generally in line with the power lever, a clutch, member Vadapted to .be moved into and out of engagement withthe driving member, means for limiting the angular movement ofthe two levers about an axis parallel with the aXis of rotation of the drive member, a hand leverpivoted at a point removed 4from the drive member and a'link connection between it and the ,clutchl lever. Y

8. The combination with a power leverof means for displacing it comprising a rotating drive member, a clutch member pivoted on the power lever, a control lever pivoted on .the power lever generally in line therewith adapted to operate the clutch member, means for limiting the angular movement of the control lever with respect to the power lever, the power lever being adapted to rotate when driven by the driving member through the clutch, a` hand lever, a connec#V tion between it and the control lever wherelby the clutch may be operated independent 9. In combination, a rotating friction drive member, a power lever pivoted intermediate its ends concentric with the aXis of rotation of the drive member, apower takeofl1 associated withV one end and a clutch member associated withthe other end .of the power lever, a clutch lever lpivoted on the power lever adjacent the clutch member,

means for rotating,v the clutch lever with respect to the power lever to movethe clutch member into and out ofengagement with the friction member. .p

10. In combination7 a rotating friction drive member, a power lever pivoted intermediate its ends concentric with the axis of rotation of the drive member, a power takeoff associated with one end and a clutch member associated with the other end `of the,

power lever', a clutch leverI pivoted -on thep'ow'er lever adjacent; theclutch member, means for rotating the-clutchV lever with re-s` spectl to therp'o'werlever to move-the clutch f memberinto and out ofengage-ment with vthe friction 'dr1ve"member, andV means forV limiting tlrerclative angularinovement ofthe two levers.-v 1 n :11. In combinationfa rotating friction driveV member, a power 'lever pivoted intermediate itsffends concentricl with'the am's of rotation of the drive'member, a power taleoff associated with one end and a clutch member ,associated with' the other end of thef-` power lever 1adjacent ,thev clutch'` member, i

power lever, fa clutch lever pivoted on the means for rotatingthe 'clutch lever with respect to the power lever. lto move/'the clutch memberinto and out of engagementgwith the friction member, the clutch lever moving means-comprisinga control' lever'` and a rigid pivoted connection betweenitvand the clutch lever, thepivot point of -the'clutch lever being adaptedV to Vmove toward 'the control lever whenthefclutch is engaged with the' friction :member whereby `movement ofthe power lever tends` to 4release the clutch.

Y. 12; ln 'combination,. a rotating friction .drive,member,'apower lever pivoted conccn-l i" Ytric with the axis ofrotation ofthe drive i95, Y,

member, a. power take-olfv and a clutch mem-y ber. assoclatedwith the power lever, aclutch lever pivoted on the power lever adjacent the f clutch member, means for rotating the clutch!A lever with respect to the powerlever to move the clutch member into and out of engage? ment with the friction4 member, the clutch y lever moving means comprising a control lever anda rigid pivoted connection between it and the clutch lever, the pivot point of the clutch lever being adapted to move toward the control lever when the clutch is engaged with the friction member whereby movement of the power lever tends to release the clutch.VV

13. In y combination, a rotating friction drive member, a power lever pivoted concentric with the aXis of rotation of the drive n i *Y member, a power takefolfand a clutch mem-y f .A ber associated with the powerulever, a clutch f 111sl clutch member, means for rotating the clutch p V` lever with respect to the powerlever tomovef lever pivoted on the power lever adjacent the the clutch memberinto and out of engage-ll ment with the frictionmember, engagement of the clutch member beingadapted'to canse movement lof the power lever towardl the` kclutch lever, rotating means whereby such mover'nent of the ,power lever responsive toy rotation' ofthe clutch lever tends torelease Y. i Y

s y l s 125 14.111 combination, av rotating. friction drive 'memberya power lever pivoted concentric with the axis offrotation of thek drive the clutch.

member, a-powerftake-oif and a clutch memberassociated with the power lever, a clutch 13.0

`-leverrpivotedv on .the vpower lever adjacent the clutch member,fmeansfor rotating the clutchlever with Vrespeetto the power lever to'movetheclutch member into and out of 'engagement with the friction member, engagement of `the clutch memberbeing adapted to cause movement of the power lever toward the clutch lever, rotating means whereby such movement ofthe power lever responsive to rotation of the clutch lever tends to release the clutch, and means for positively forcing the clutch .out of engagement responsive to such movement. Y I

15. Incombination, a friction drive member, 'a'movable power member, a power takeolf and acluteh `associated with the power member,.means for engaging the clutch with the friction drive member, the movement of Y the power member resulting from such clutch engagement tending to Arelease theclutch, and positive means responsiveto such movement for forcing the clutch out of engagement'.

16. Inf combination,Y a friction drive member, a movable power memberxhaving a power take-ofi and clutch associated'therewith, rigid clutch operating means for CarusL .ing engagement of the clutch with the fric@ vtion, drive member, the movement of the power member resulting from such clutch engagement being adapted to work in the same direction as theA clutch operating means, tendingto release the clutch, and positive means responsive to such movement for forcing the clutch out of engagement.

Y vSigned at Chicago, county ofCook, and

State of Illinois, this 4th day ofJanuary,

1929. ASGER EILERSGAARD.

' I an 

